USGS 11456000 NAPA R NR ST HELENA CA

PROVISIONAL DATA SUBJECT TO REVISION

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> Rating Information
Available Parameters Available Period
  
1987-10-02  2025-07-09
2007-10-01  2025-07-09
2022-07-09  2025-07-09







 (7)
 

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Summary of all available data for this site
Instantaneous-data availability statement


Discharge, cubic feet per second

Most recent instantaneous value: 2.43 07-09-2025   05:00 PDT
Graph of  Discharge, cubic feet per second

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Daily discharge, cubic feet per second -- statistics for Jul 9 based on 83 water years of record more
Min
(2008)
25th
percen-
tile
Median Most Recent
Instantaneous
Value Jul 9
Mean 75th
percen-
tile
Max
(1974)
0.00 0.87 1.8 2.43 2.8 4.7 14.0


Gage height, feet

Most recent instantaneous value: 1.23 07-09-2025   05:00 PDT
Graph of  Gage height, feet

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Stream water level elevation above NAVD 1988, in feet

Most recent instantaneous value: 192.56 07-09-2025   05:00 PDT
Graph of  Stream water level elevation above NAVD 1988, in feet

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